Apparatus for stretching wire.



' 0. w. BURNETT. APPARATUS FOR STRETCHING WIRE.

APPLICATION FILED SEPT. 22 19H.

1 ,69,311. Patented June 11, 1918.

0mm W an.

swingingof' one armwith respect to the Stretching I sins r r b.

- cham w; Bbnnnrr, or LAcLnDn, m som, ASSIGNOR or ONE-HALF T0 JOHN L.

. WELSH, 0F LACLEDE,MISSOURI.

arrnnnfrujs ron smnrcnme WIRE.

Specification of Letters Patent.

Patented June 11, was.

. Applicationfiled September 22, 1917. Serial No. 192,699.

My inventionrelates "to apparatus for pulling or stretching wire, eithersmooth or barbed, in the building orrepairing of jfences, "while notnecessarily restri t d t thlsuse. 1 i i g 1 r p Object of th i e ti i toprovide the pivoted arms of fto'ngs with meansfor attachment with astrand of wire; and wlth means to automatically feed or aditvance'another strand, to be connected with thefirs t named strand, thefeeding move ment being automatically effected by the other. 1 1 1 Afurther object of the invention is to provide apparatus of the abovementioned character, which is simple in construction, inexpensive tomanufacture, strong and du rable.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawings forming a part of this specification and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 is a perspective view of apparatus embodying my invention,

Fig. 2 is a side elevation of the forward end of one arm of the tongs,

Fig. 3 is a longitudinal section, taken on line 33 of Fig. 2, and,

Fig. 4 is a transverse section taken on line H of Fig. 3.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of my invention, the numeral 5 desig nates arms ofa pair of tongs, which are provided centrally thereof with circulardisks 6, disposed in contacting relation, as shown. These disks arepivoted by a transverse element 7. The disks 6 are provided withcoacting openings or notches 8, which constitutes means for receivingand cutting wire. The arms 5 cross, as shown, and are provided forwardlyof the pivot 7 with clamping jaws he inner face of h h have inventedcertain new 16 and 17 are provided at their are preferably serrated, asshown at 10.

hese jaws function as pliers or clamping means, adapted for holding twostrands of wire which are tobe twisted or otherwise secured together.

At their rear ends, the arms 5 are provided with handles 11. preferablyformed integral therewith.

At their forward ends, the arms 5 are provided with extensions 12,preferably formed integral therewith. These extensions are provided withtransverse relatively stationary lugs or clamping elements 13,preferably formed integral with the eXtensions. These lugs are adaptedto contact with strands of wire 14 and 15, as shown.

Disposed forwardly of the lugs 13 are feed ing and holding dogs 16 and17, pivoted to the extensions 12, as shown at 18. These dogs are adaptedto swing in the same direction, as indicated by the arrows. The dogsrear ends with serrated cam faces 19, to contact with the strand of wire14-, and clamp or bind the same to the lugs 13. Each dog is normallyretained in the inner position, in close proximity to the lug 13, by acompressible coil spring 20, disposed within semicircular recesses 21and 22, which are formed in the extension 12 and dog 16, respectively,

as more clearly shown in Fig. 4:. Each dog 16 has a rearwardlyprojecting flange 16, adapted to span the side of the element 13, asclearly shown in Fig. 3.

Means are provided for attaching one arm 5 of the apparatus to thestrand of wire 15, preferably including a dog 23, arranged rearwardly ofthe lug 13, and pivoted to the arm, as shown at 24. The dog 23 has itsforward end provided with a ser rated cam face 25 for clamping orbinding the strand of wire 15 against the rear side of the lug 13.

In operating the apparatus, for securing the ends of the strands of wire14 and 15 together, the apparatus as a whole is attached to the strandof wire 15, by passing such strand between the dog 23 and the lug 13.The end of the strand 1 1 is then placed upon the forward sides of thelugs 13, and engaged by the dogs 16 and 17. The arm 5 secured to thestrand 15 is preferably held stationary, while the other arm 5 is swungin opposite directions upon its pivot. The dog 16 w ll function to e thestrand.

of Wire 14 to the right, upon its arm 5 bemg swung in that direction,and when this arm is swung to "the 1eft,"the dog 17 serves that the Wire14 may be given a step by stepieeding movement to the. right, and.

when the two strands of Wire have been drawn suitably taut; about eachother, as indicated in Fig. 1. It is obvious that the apparatus 11'1a:;:be re- :moved from engagement with the' strands'wot" 1 Wire, afterthework is completed. '1;

It is to be understoodthatthe 'formwofi my invention herewith shown and'described is to be'taken as apreferred example of the same, size, andarrangement of 'parts' maybe resorted to without departing fnomhthespirit oined claims.

' Having th11sdescribed lny HTVGIItiOByFIi claim their ends are twisted.

and that vari'onsch'anges in t11e'shape-,-: oanried :by saidcorresponding sidesii of the the lugs thereof; dogs pivoted totheforward ends of the extensions and disposed forwardly of and providedwith rearwardly extendingfianges which extend over the sides swinging inthe same direction;

of -the lugs, to prevent the strand of Wire from passing off of thesame, said dogs and a third dog pivoted to one arm andarranged reariiwardlynofrandnear the transverse 111g therethe point-tot crossing fandtof for clamping the Wire to such lug. V

2. In apparatnswofwrtheeharactervdeseribed, a vpair' ofeerossing armswhich? are pivoted at are provided at their forward endswithvextensions,said extensions being provided upon-corresponding sidesthereof: withr'recesses & transverse lugs extensions and arrangedvatcrupoints spaced from the forward endsnof the extensions;

1. In apparatus of the eharactendescribed; it

together at the point transverse lugs carried by the forward eX- a pairofflerossing arms which arepivotedi'. of crossing, sa d arms 1 beingprovlded with iorward extenslons;

tensions andspaced from'the forward ends ofthe invention-01'"thescopeHot the sub-s: dogs disposeddorivardlyaofthehigsfiandpivoted-to the forward ends; of theuextensions,

said dogs i swinging :in ther same direction, said dogs being provideduponttheirlinner sides: with? recesses wad'apted for co-action with thefirst namederecesses;and a compressibiezeoil v spring arranged withinthe coaetingrecesses. 1 a

. In testimony whereof I afiix ny signature.

IQRBID WMBURN ETT.

- c f t i pate trmayme"obtained forrfive cents acIa by-adGI'B WimmmissimemWham" r" r:- liwashington, O.

